.PHONY:all
all: file_operation file_operation_g

file_operation_g:file_operation.c
		gcc -o file_operation_g file_operation.c -std=c99 -g
file_operation:file_operation.c
		gcc -o file_operation file_operation.c -std=c99
.PHONY:clean
clean:
		rm -f file_operation file_operation_g
